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Describe
Syntax
Describe(E:OBJECT)
Describe E:OBJECT
Summary
information about an expression
Description
This command gives information about the expression E.
example
Use R ::= Z/(32003)[t,x,y];
I := Ideal(t^3-x,t^4-y);
G := SyzOfGens(I);
Print I;
Ideal(t^3 - x, t^4 - y)
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Describe I;
Record[Type = IDEAL, Value = Record[Gens = [t^3 - x, t^4 - y],
SyzOfGens = Module([-t^4 + y, t^3 - x], [t^4x - xy, -t^3x + x^2])]]
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Describe Function("$mat.Transposed");
Define Transposed(M)
If NOT(Type(M) = MAT) Then
Error("Transposed: argument must be a matrix");
EndIf;
Return(Mat[
J,
1..Len(M[1]),
TRUE,
[M[I][J]|I In 1..Len(M)]
]);
EndDefine;
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See Also